CaseMaker.com is a nice tool to make boxes with, but the settings has to be right.
I have been experimenting with CaseMaker, and how to find the perfect kurf for a 3 mm acrylic box.
This is my findings.

This is a project I did on Fabcreation, in Fablab Copenhagen for Valby Library.
The library is in lack of seating space. and have horribly boring exhibition-shelves... so I figured I would combine those two into one fun, colourful and comfortable furniture.